1985 Detroit Grand Prix
- Round
- 6 of 1985
- Circuit
- Detroit Street Circuit
- Location
- Detroit, Michigan, United States of America
- Dates
- —
- Format
- Standard weekend
- Winner
- Keke Rosberg
- Constructor
- Williams
- Entrant
- Williams-Honda
- Pole position
- Ayrton Senna
- Fastest lap
- Ayrton Senna
- Confidence
- reference
Classification
| Pos | Driver | Constructor | Grid | Laps | Points | Status |
|---|---|---|---|---|---|---|
| 1 | Keke Rosberg | Williams | 5 | 63 | 9 | — |
| 2 | Stefan Johansson | Ferrari | 9 | 63 | 6 | — |
| 3 | Michele Alboreto | Ferrari | 3 | 63 | 4 | — |
| 4 | Stefan Bellof | Tyrrell | 19 | 63 | 3 | — |
| 5 | Elio de Angelis | Team Lotus | 8 | 63 | 2 | — |
| 6 | Nelson Piquet | Brabham | 10 | 62 | 1 | — |
| 7 | Thierry Boutsen | Arrows | 21 | 62 | — | — |
| 8 | Marc Surer | Brabham | 11 | 62 | — | — |
| 9 | Eddie Cheever | Alfa Romeo | 7 | 61 | — | — |
| 10 | Andrea de Cesaris | Ligier | 17 | 61 | — | — |
| 11 | Gerhard Berger | Arrows | 24 | 60 | — | — |
| 12 | Jacques Laffite | Ligier | 16 | 58 | — | — |
| DNF | Ayrton Senna | Team Lotus | 1 | 51 | — | Accident · fastest lap |
| DNF | Nigel Mansell | Williams | 2 | 26 | — | Accident |
| DNF | Alain Prost | McLaren | 4 | 19 | — | Accident |
| DNF | Derek Warwick | Renault | 6 | 18 | — | Transmission |
| DNF | Niki Lauda | McLaren | 12 | 10 | — | Brakes |
| DNF | Teo Fabi | Toleman | 13 | 4 | — | Clutch |
| DNF | Riccardo Patrese | Alfa Romeo | 14 | 19 | — | Electrical |
| DNF | Patrick Tambay | Renault | 15 | 15 | — | Accident |
| DNF | Martin Brundle | Tyrrell | 18 | 30 | — | Collision |
| DNF | Manfred Winkelhock | RAM | 20 | 3 | — | Turbo |
| DNS | Piercarlo Ghinzani | Osella | 22 | — | — | Accident |
| DNF | Philippe Alliot | RAM | 23 | 27 | — | Collision |
| DNF | Pierluigi Martini | Minardi | 25 | 11 | — | Engine |